Using Equations to Represent Trend Lines

Question 1

These scatterplots represent the monthly sales and advertising costs of a company. Which trend line is the best fit for the data?

Revolt · Accepted Answer

Answer image: //media.edgenuity.com/EVresources/3108-04-05-25-01-task/mc001-4.jpg

Question 2

Question 2

Revolt · Accepted Answer

(6.4, 117); (6.6, 120)

Question 3

Which two points can be used to find the slope of the trend line?Point 1: (5.7, 102)(6, 116)(6.2, 112)✔ (6.4, 117)

Revolt · Accepted Answer

✔ (6.4, 117); (6.4, 117); (6.6, 120)

Question 4

Point 2: (6.5, 122)✔ (6.6, 120)(6.7, 121)(6.9, 123)

Revolt · Accepted Answer

✔ (6.6, 120)

Question 5

Using the points (6.4, 117) and (6.6, 120), what is the slope of the trend line?

Revolt · Accepted Answer

15

Question 6

The slope of the trend line is 15. What does that mean in regard to the data of the scatterplot? Check all that apply.

Revolt · Accepted Answer

The slope represents the rate of change of the data.; Sales increase $15,000 as ads increase by $1,000.; A positive slope infers a positive correlation.

Question 7

y = 15x + b

Revolt · Accepted Answer

21

Using Equations to Represent Trend Lines Answers

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